Type 815A reconnaissance ship
After year 2000, an improved version appeared, designated as Type 815A, and the most obvious external visual difference between Type 815A and earlier Type 815 is that the former has a different mast somewhat similar to a pagoda shape, and the sheer line is curved at a greater angle.
The Chinese military fully recognized the importance of military technical intelligence as one of the important factors determining the victory or defeat of war. The 815A electronic reconnaissance ship continued to be built. The design of the platform has not changed much, but the technical detection system has changed a lot. In turn, the technology developed later is also used. A large-scale upgrade of the technical inspection system of the first 851 reconnaissance ship was carried out. Today, the development of the Chinese navy's electronic technology is claimed by Chinese sources as one of the forefront of the world, and in some respects very advanced compared with the United States. Judging from the current use situation, the 815 series of electronic reconnaissance ships have played a huge role in the naval reconnaissance front. In addition to monitoring the US aircraft carrier formation, the 854 ship also completed the round-the-island navigation to Japan with the North Sea Fleet.
A new missile tracking ship, similar to the training ship Zhenghe, was reported building at the Qiuxin SY in Shanghai as of 1999. The 6,096-tonne ship has an overall length of 130 meters, an overall beam of 16.4 meters, and a hull draft of 6.5 meters. The ship has a top speed of 20 knots and can carry a crew of 250 and one medium helicopter. The Dongdiao-class is armed with one 37 millimeter and two 14.5 millimeter guns. After entering service in the latter half of 1999, the ship went through major upgrade several years later, with parabolic antennas replaced by three large radomes. In addition to collecting electronic intelligence, this class is also tasked to perform ballistic missile tracking.
In early 2000 the new Electronic Reconnaissance Ship Dongdiao [hull number 232] turned up near the Japanese Coast. On 02 March 2000 a fleet of Chinese naval vessels was activating its training exercises in a central area of the East China Sea within Japan's exclusive economic zone (EEZ) off the Senkaku islets (or Diaoyu in Chinese) that belong to Ishigaki City in Japan's southernmost island prefecture of Okinawa.
In 1999, a Chinese naval fleet lined up with newly introduced large-size vessels showed up in Japan's EEZ waters for the first time, and carried out training twice. On 05 February 2000, a patrol plane of the Japanese Maritime Self-Defense Force Fleet Air Wing 5 (headquartered at Naha) confirmed the Dongdiao 232, a Chinese missile tracking support ship, in the waters northwest of Amami Oshima Island. It was the first time the Self-Defense Forces had confirmed that ship.
The 815A electronic reconnaissance ship is the successor model of the 815 reconnaissance ship. It is about 130 meters long, 16 meters wide, weighs about 6,000 tons, and carries a small amount of self-defense weapons.
"Although the appearance of the 815A and 815 electronic reconnaissance ships is not much different, some breakthroughs have been made in the superstructure, such as the reduction of the spherical radome and the modification of the truss mast, plus the embedded new electronic information technology, such as extremely high sensitivity. The monitoring equipment makes the overall performance of the 815A reconnaissance ship even higher. "Said Li Jie, a researcher at the Naval Academy of Military Academy.
There were dense antennas on previous electronic reconnaissance ships. The previous fifth 815A reconnaissance ship changed the style of painting. The original dish antenna was replaced by three large radomes. According to the British "Jane's Defense Weekly", the launch of the East tune-up reconnaissance ship in 2017 has not been installed with antennas or radomes. Li Jie said that the spherical cover is to protect the detection equipment, but after the technology upgrade, there is a tendency to remove the spherical cover, so the number of spherical covers of the new reconnaissance ship has been significantly reduced.
"In addition, the upper body structure of the detection ship has also changed. The antenna mast of the original truss structure has been assembled into a prismatic, tilted, fully enclosed stealth mast that looks like a pillar. This reduces the radar reflection area and the ship's body is more simple It is not esy to expose whereabouts when sailing. "Li Jie said.
In addition to the latest 815A reconnaissance ships equipped with radar, electromagnetic, optical, sonar and other reconnaissance methods, satellite reconnaissance methods have been added, which can detect the actions of aircraft, ships and submarines, as well as dozens, hundreds, etc. Satellites from kilometers away from space can gather information in a comprehensive and systematic way and launch interference information.
A Chinese vessel sailing in international waters, not in Australia's territorial waters, touched a raw nerve in Australia. Australian politicians and media outlets made a fuss of the Chinese "surveillance" on the Talisman Sabre war games, the largest two-way training exercise between Australian and US forces, by the Chinese ship Tianwangxing. Prime Minister Scott Morrison said 14 July 2021 that the Australian government was "very wary" of the Chinese ship's presence. Liberal MP Dave Sharma, a former senior diplomat, said the Chinese vessel's presence "does not strike me as the act of a friendly nation." Deputy Prime Minister Barnaby Joyce accused China of hacking Australia in all aspects including iron ore, gas, vital agricultural exports, alliances and how close the country's platform is with the US.
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